Feature a country (5)
I believe the answer is:
china
'country' is the definition.
(China is an example)
'feature a' is the wordplay.
'feature' becomes 'chin' (facial feature).
'chin'+'a'='CHINA'
(Other definitions for china that I've seen before include "The most populous country in the world" , "Country - crockery" , "Ceramics; friend" , "World's most populous country" , "Dresden, perhaps" .)